Just to be clear, we are talking about long before Atlantis here.
2006-09-29
05:51:55
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9 answers
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Seeker
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Arts & Humanities
➔ History
As for finding no archaeological trace of such a civilisation I could suggest a number of possible reasons. For one, more than 170 million years ago, Antarctica, now the fifth largest continent, was part of the supercontinent Gondwana. Over time Gondwana broke apart and Antarctica as we know it today was formed around 25 million years ago. During the Cambrian period Gondwana had a mild climate. Even after the breakup of Gondwana about 65 million years ago Antarctica (then connected to Australia) still had a tropical to subtropical climate, Not until about 40 million years ago after Australia-New Guinea separated from Antarctica did the first ice began to appear. Currently about 98% of Antarctica is covered by the Antarctic ice sheet. The ice sheet is, on average, 2.5 kilometers (1.6 miles) thick. No one has yet explored beneath that ice to see what is there.
2006-09-29
06:26:16 ·
update #1